Room lighting study

There was a thread on room lighting yesterday. So I made box with window cutout. So I setup few lights to study the lighting; Sun, Area, and Environmental light. It came out ok so I started to add props, never thinking this is going to be a detailed work. Day later here is what I have:

What I am finding out is that AO setting can never be one setting for all objects. When I added the radiator with bunch of pipes, or bottles on bookshelf, it rendered too dark. Simply because there are lot of surface near by and that throws off AO render.

Also, even at this stage, outliner is getting too congested. I am using layers to keep workspace clean. But outliner lists every thing. So someone give me a tip on managing large file?

i tough there was one like that done a few week ago

are you in 2.5 ?

salutations

the lighting’s very good, but I’m not an expert with interior lighting. As for the outliner, I had wondered the same thing after I made so many shapes… I ended up parenting the shapes to one shape which worked out fine in my case. I’m not sure how you would handle something like this, if you would parent everything to an empty?

Probably the only objectionable characteristic is the moiré patterns on the upholstery of the chairs. These would give you problems down the line. You also have over-exposure on the far wall, at the baseboard. The reflective, glossy floorboards are certainly “impressive,” but not really plausible to my way of thinking. Tongue-and-groove floorboards have enough grain and texture of their own, that they really don’t form mirrors.

Rick, I am upgrading my PC now so when it is running I will try 2.5.

Divine, I did use parenting for the radiator, and floor lamp; as it is the radiator is made up of 8 objects, a bear minimum! Parenting floor lamp was the way to go, that way I managed to swing lamp arm individually. Its just that, looking at the book shelf I need to have over 30 books! I will try Parenting to empty.

Sundial, I really didn’t work on upholstery all that carefully. I just added bump texture, used Object coordinate, and crossed my fingers! For proper work, it should be UVed and all that I agree.

As for over exposure, light is hitting many different places and it is little difficult to adjust for all of them. I need to think about addressing that issue.

A reflective glossy floorboard was tricky. Polished floorboards “do” reflect object at its base seen from distance. I was playing with Ray Mirror setting Fresnel, and Fac to try to look right. But the settings were very sensitive. I need to play with it a little more.

do you have the 2 tut on lighting that where given 2 weeks ago
like the one from MetaAndroco and another one too!

it includes AO and many others

i can find theses if you need too!

by the way the floor grooves are way too big !

good luck and have fun
what are you getting as new PC Specs?

happy 2.5


The illumination splashing on the left side of the left bookshelf doesn’t make much sense… maybe it’s a reflection off the couch? But overall I think it’s a nicely done exercise! How many lights are in the scene?

Keep in mind that with Blender, you cannot rely on a really realistic lighting system and will have to employ a lot of tricks to have a realistic result.
Sometimes negative lights are necessary to remove excess light in areas. Sometimes you have to alter material settings in absurd ways, lol. You can also light your scene using HDRi maps in blender, but its a fairly complicated process. But, imho I would simply export to an external renderer (Lux, Octane, etc) to make life easier.
With that said, its always good to do tests with the software you use, so keep us posted if you find anything interesting :slight_smile:

Happy Blending,
Ben

Rick, my new PC has AMD 5000 Dual Core, 4 Geg PC6400 DDRH, with ATI Radeon 1 Geg RAM. It is not the best and fastest system, but then I have been putting system together for my sons for many years now. I had to upgrade 3 PC at a time at a budget. So I always purchased parts that are few years out of date that can play the latest game.

I fired up the Blender today on my new PC and rendered my test room with curtain. It rendered it in 10 min. Considering it took me 2 hours with my old PC! This may not be a good comparison though because my old system has all kinds of stuff running in the background you know.

I loaded Blender 2.6 with 2.49 today too. I think I goofed though. Both programs are sitting in a same program folder. Hummm, it’s working though.

http://i1135.photobucket.com/albums/m626/cabby24/Blender%20WIP%202011/room_ltB.png

That light would be “diffuse reflection”. Light bounces off everything, most notably here would be the other side of the book shelf. Some is absorbed and some is reflected, the reflected light then scatters making it diffuse. When it bounces some of it will bounce back and hit the area you have circled. That’s why when sunlight comes in a house window, you don’t see just sharply light areas, but the whole room is light in varying degrees.